Sicilian Defense: Complete Guide

Openings & Plans Sicilian Defense ECO B20 263M games Anti-Openings Sicilian Defense ECO B20 263M games Anti-Openings Sicilian Defense: Nf3 ECO B20 61M games Openings & Plans Sicilian Defense: Old Sicilian ECO B30 61M games Openings & Plans Sicilian Defense: Modern Variations ECO B50 42M games Openings & Plans Sicilian Defense: Bowdler Attack ECO B20 37M games Openings & Plans Sicilian Defense: Open ECO B32 24M games Openings & Plans Sicilian Defense: French Variation ECO B40 23M games Openings & Plans Sicilian Defense: Old Sicilian: d4 ECO B30 22M games Gambits Sicilian Defense: Morphy Gambit: Nc6 ECO B21 21M games Openings & Plans Sicilian Defense: Open: cxd4 ECO B32 21M games Gambits Sicilian Defense: Smith-Morra Gambit ECO B21 21M games Openings & Plans Sicilian Defense: Bowdler Attack: Nc6 ECO B20 18M games Openings & Plans Sicilian Defense: Closed ECO B23 18M games Openings & Plans Sicilian Defense: Modern Variations: d4 ECO B50 17M games Anti-Openings Sicilian Defense: d4 ECO B20 16M games Gambits Sicilian Defense: Morphy Gambit: d6 ECO B21 15M games Anti-Openings Sicilian Defense: Bc4 ECO B20 13M games Openings & Plans Sicilian: Alapin Variation ECO B22 12M games Openings & Plans Sicilian Defense: Alapin Variation ECO B22 12M games Openings & Plans Sicilian Defense: McDonnell Attack ECO B21 12M games Openings & Plans Sicilian Defense: Bowdler Attack: d6 ECO B20 12M games Openings & Plans Sicilian Defense: Old Sicilian: Bc4 ECO B30 12M games Openings & Plans Sicilian Defense: French Variation: d4 ECO B40 8M games Openings & Plans Sicilian Defense: French Variation, Open ECO B40 8M games Openings & Plans Sicilian Defense: Closed: Nc6 ECO B23 8M games Openings & Plans Sicilian Defense: Closed, Traditional ECO B23 8M games Anti-Openings Sicilian Defense: Nc3 ECO B20 8M games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack ECO B30 7M games Gambits Sicilian Defense: Morphy Gambit: e6 ECO B21 7M games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon ECO B27 5M games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation ECO B20 4M games Openings & Plans Sicilian Defense: Closed: e6 ECO B23 4M games Gambits Sicilian Defense: Smith-Morra Gambit Accepted ECO B21 4M games Openings & Plans Sicilian Defense: Modern Variations: Bc4 ECO B50 4M games Openings & Plans Sicilian Defense: French Variation: Nc3 ECO B40 3M games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6 ECO B50 3M games Openings & Plans Sicilian: Alapin Variation: Nc6 ECO B22 3M games Openings & Plans Sicilian Defense: Alapin Variation: Nc6 ECO B22 3M games Openings & Plans Sicilian Defense: d3 ECO B20 3M games Openings & Plans Sicilian: Alapin Variation: e6 ECO B22 3M games Openings & Plans Sicilian Defense: Alapin Variation: e6 ECO B22 3M games Openings & Plans Sicilian Defense: O'Kelly Variation: Bc4 ECO B28 3M games Openings & Plans Sicilian Defense: O'Kelly Variation ECO B28 3M games Openings & Plans Sicilian Defense: Bowdler Attack: e6 ECO B20 3M games Anti-Openings Sicilian Defense: f4 ECO B20 2M games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6 ECO B40 2M games Openings & Plans Sicilian Defense: Moscow Variation ECO B51 2M games Openings & Plans Sicilian Defense: McDonnell Attack: d6 ECO B21 2M games Gambits Sicilian Defense: Smith-Morra Gambit: e6 ECO B21 2M games Openings & Plans Sicilian Defense: Nimzowitsch Variation: Nc3 ECO B29 2M games Openings & Plans Sicilian Defense: Franco-Sicilian Variation ECO B32 2M games Openings & Plans Sicilian Defense: McDonnell Attack: e6 ECO B21 2M games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: Nc6 ECO B40 2M games Openings & Plans Sicilian Defense: c4 ECO B20 2M games Openings & Plans Sicilian Defense: Closed, Traditional: Bc4 ECO B23 2M games Openings & Plans Sicilian: Alapin Variation: d6 ECO B22 2M games Openings & Plans Sicilian Defense: Alapin Variation: d6 ECO B22 2M games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: d4 ECO B27 2M games Openings & Plans Sicilian Defense: Marshall Counterattack: exd5 ECO B40 2M games Anti-Openings Sicilian Defense: c3 ECO B20 1M games Openings & Plans Sicilian Defense: Bowdler Attack: g6 ECO B20 1M games Openings & Plans Sicilian Defense: Marshall Counterattack: e5 ECO B40 1M games Gambits Sicilian Defense: Morphy Gambit ECO B21 1M games Gambits Sicilian Defense: Smith-Morra Gambit: cxd4 ECO B21 1M games Gambits Sicilian Defense: Smith-Morra Gambit Accepted: Nxc3 ECO B21 1M games Openings & Plans Sicilian Defense: Old Sicilian: Nc3 ECO B30 1M games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: Nc6 ECO B50 1M games Openings & Plans Sicilian Defense: Marshall Counterattack ECO B40 1M games Openings & Plans Sicilian Defense: Modern Variations: c3 ECO B50 1M games Openings & Plans Sicilian Defense: Modern Variations: Bb5+ ECO B50 1M games Openings & Plans Sicilian Defense: Moscow Variation, Main Line ECO B52 1M games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: Bc4 ECO B27 1M games Openings & Plans Sicilian Defense: Grand Prix Attack ECO B23 1M games Openings & Plans Sicilian Defense: McDonnell Attack: Nc6 ECO B21 1M games Openings & Plans Sicilian: Grand Prix Attack ECO B23 1M games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: a6 ECO B30 1M games Gambits Sicilian Defense: Wing Gambit ECO B20 1M games Openings & Plans Sicilian Defense: O'Kelly Variation, Normal System ECO B28 1M games Openings & Plans Sicilian: Four Knights ECO B45 1M games Openings & Plans Sicilian Defense: Mengarini Variation ECO B20 1M games Openings & Plans Sicilian Defense: Nimzowitsch Variation ECO B29 1M games Openings & Plans Sicilian Defense: Czerniak Attack ECO B20 1M games Openings & Plans Sicilian Defense: Lasker-Dunne Attack ECO B20 1M games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: Nc3 ECO B32 1M games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation ECO B31 1M games Openings & Plans Sicilian Defense: Closed, Anti-Sveshnikov Variation ECO B30 1M games Openings & Plans Sicilian Defense: Closed, Traditional: Nf3 ECO B23 1M games Openings & Plans Sicilian Defense: French Variation, Open: Nxd4 ECO B40 1M games Openings & Plans Sicilian Defense: O'Kelly Variation: d4 ECO B28 1M games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl ECO B27 1M games Openings & Plans Sicilian Defense: Open: e6 ECO B32 989K games Openings & Plans Sicilian Defense: O'Kelly Variation, Normal System: cxd4 ECO B28 981K games Openings & Plans Sicilian Defense: Bowdler Attack: a6 ECO B20 903K games Openings & Plans Sicilian Defense: Drazic Variation ECO B40 901K games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: Nc3 ECO B27 864K games Openings & Plans Sicilian Defense: b4 ECO B20 790K games Openings & Plans Sicilian Defense: Kramnik Variation ECO B40 747K games Openings & Plans Sicilian Defense: Closed, Traditional: f4 ECO B23 719K games Openings & Plans Sicilian Defense: Grand Prix Attack: e6 ECO B23 712K games Openings & Plans Sicilian: Grand Prix Attack: e6 ECO B23 712K games Openings & Plans Sicilian Defense: French Variation: c3 ECO B40 709K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: a6 ECO B40 692K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: e6 ECO B30 687K games Openings & Plans Sicilian Defense: Jalalabad Variation ECO B27 671K games Openings & Plans Sicilian Defense: Katalimov Variation ECO B27 655K games Openings & Plans Sicilian: Alapin Variation: d5 ECO B22 651K games Openings & Plans Sicilian Defense: Alapin Variation: d5 ECO B22 651K games Openings & Plans Sicilian Defense: French Variation: Bc4 ECO B40 645K games Openings & Plans Sicilian Defense: Nimzowitsch Variation, Closed Variation ECO B29 641K games Openings & Plans Sicilian Defense: Modern Variations: Nc3 ECO B50 632K games Openings & Plans Sicilian Defense: Grand Prix Attack: d6 ECO B23 629K games Openings & Plans Sicilian: Grand Prix Attack: d6 ECO B23 629K games Openings & Plans Sicilian Defense: O'Kelly Variation: Nc3 ECO B28 627K games Openings & Plans Sicilian Defense: French Variation: c4 ECO B40 622K games Openings & Plans Sicilian Defense: Alapin Variation, Barmen Defense ECO B22 616K games Openings & Plans Sicilian Defense: a3 ECO B20 588K games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: dxc5 ECO B32 587K games Openings & Plans Sicilian Defense: O'Kelly Variation, Yerevan System ECO B28 587K games Openings & Plans Sicilian Defense: O'Kelly Variation: c3 ECO B28 569K games Gambits Sicilian Defense: Smith-Morra Gambit: Nc6 ECO B21 565K games Openings & Plans Sicilian Defense: Old Sicilian: Bb5 ECO B30 555K games Openings & Plans Sicilian Defense: Old Sicilian: c3 ECO B30 554K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: c3 ECO B27 551K games Openings & Plans Sicilian Defense: Closed, Fianchetto Variation ECO B24 537K games Openings & Plans Sicilian Defense: Qf3 ECO B20 520K games Openings & Plans Sicilian Defense: Lasker-Dunne Attack: Nc6 ECO B20 510K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: e6 ECO B20 507K games Gambits Sicilian Defense: Smith-Morra Gambit: d6 ECO B21 490K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: Nd4 ECO B30 479K games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: c3 ECO B32 463K games Openings & Plans Sicilian: Alapin Variation: Nf6 ECO B22 460K games Openings & Plans Sicilian Defense: Alapin Variation: Nf6 ECO B22 460K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: d6 ECO B20 443K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: d6 ECO B30 435K games Gambits Sicilian Defense: Wing Gambit: cxb4 ECO B20 434K games Gambits Sicilian Defense: Wing Gambit, Marshall Variation ECO B20 434K games Openings & Plans Sicilian Defense: Closed, Traditional: d3 ECO B23 433K games Gambits Sicilian Defense: Smith-Morra Gambit Declined, Center Formation ECO B21 432K games Openings & Plans Sicilian Defense: McDonnell Attack: g6 ECO B21 430K games Openings & Plans Sicilian Defense: Old Sicilian: d3 ECO B30 425K games Openings & Plans Sicilian Defense: Moscow Variation: Nc6 ECO B51 419K games Openings & Plans Sicilian: Alapin Variation: e5 ECO B22 415K games Openings & Plans Sicilian Defense: Alapin Variation: e5 ECO B22 415K games Openings & Plans Sicilian Defense: Keres Variation ECO B20 408K games Openings & Plans Sicilian Defense: Moscow Variation, Main Line: Bxd7+ ECO B52 397K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation: Bxc6 ECO B31 394K games Openings & Plans Sicilian Defense: French Variation: d3 ECO B40 393K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: d5 ECO B40 373K games Openings & Plans Sicilian Defense: McDonnell Attack: d5 ECO B21 369K games Openings & Plans Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order ECO B50 363K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation: Nc3 ECO B31 361K games Openings & Plans Sicilian Defense: Czerniak Attack: Nc6 ECO B20 355K games Openings & Plans Sicilian Defense: Open: d6 ECO B32 350K games Openings & Plans Sicilian Defense: O'Kelly Variation, Venice System ECO B28 335K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: Nc3 ECO B27 308K games Openings & Plans Sicilian Defense: Nimzowitsch Variation, Advance Variation ECO B29 305K games Gambits Sicilian Defense: Smith-Morra Gambit Accepted: Bc4 ECO B21 301K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: e5 ECO B50 295K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: e6 ECO B50 292K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: d6 ECO B40 292K games Gambits Sicilian Defense: Wing Gambit, Carlsbad Variation ECO B20 283K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: g6 ECO B30 279K games Gambits Sicilian Defense: Smith-Morra Gambit Declined, Push Variation ECO B21 273K games Openings & Plans Sicilian: Grand Prix Attack: g6 ECO B23 272K games Openings & Plans Sicilian Defense: Lasker-Dunne Attack: d6 ECO B20 269K games Openings & Plans Sicilian Defense: Bowdler Attack: Nf6 ECO B20 269K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack: Nf6 ECO B30 266K games Openings & Plans Sicilian: Four Knights: Be3 ECO B45 264K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation: O-O ECO B31 264K games Openings & Plans Sicilian: Richter-Rauzer ECO B60 259K games Openings & Plans Sicilian Defense: Closed, Anti-Sveshnikov Variation: Bb5 ECO B30 252K games Gambits Sicilian Defense: Smith-Morra Gambit Declined, Alapin Formation ECO B21 236K games Openings & Plans Sicilian Defense: Marshall Counterattack: dxc5 ECO B40 233K games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: c4 ECO B27 230K games Openings & Plans Sicilian Defense: O'Kelly Variation, Normal System: e6 ECO B28 228K games Openings & Plans Sicilian Defense: Marshall Counterattack: Nc3 ECO B40 227K games Openings & Plans Sicilian Defense: Czerniak Attack: e6 ECO B20 225K games Openings & Plans Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line ECO B28 220K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: dxc5 ECO B27 214K games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: d3 ECO B27 204K games Openings & Plans Sicilian Defense: Lasker-Dunne Attack: e6 ECO B20 202K games Openings & Plans Sicilian Defense: French Variation, Open: c3 ECO B40 199K games Openings & Plans Sicilian Defense: French Variation, Westerinen Attack ECO B40 195K games Openings & Plans Sicilian Defense: Bücker Variation ECO B27 192K games Openings & Plans Sicilian Defense: Bücker Variation ECO B27 192K games Openings & Plans Sicilian Defense: Mengarini Variation: d6 ECO B20 188K games Openings & Plans Sicilian Defense: Mengarini Variation: e6 ECO B20 185K games Gambits Sicilian Defense: Portsmouth Gambit ECO B30 184K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: a6 ECO B50 176K games Openings & Plans Sicilian Defense: Nimzowitsch Variation: d3 ECO B29 171K games Openings & Plans Sicilian: Four Knights: Bg5 ECO B45 170K games Gambits Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation ECO B21 165K games Openings & Plans Sicilian Defense: Closed, Anti-Sveshnikov Variation: d3 ECO B30 163K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: Bc4 ECO B27 157K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: e5 ECO B20 155K games Openings & Plans Sicilian Defense: Closed, Traditional: Bb5 ECO B23 149K games Openings & Plans Sicilian Defense: Quinteros Variation ECO B27 142K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: Nf6 ECO B50 136K games Openings & Plans Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line ECO B28 133K games Openings & Plans Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line ECO B28 133K games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: Bb5 ECO B32 132K games Gambits Sicilian Defense: Smith-Morra Gambit: b6 ECO B21 130K games Openings & Plans Sicilian Defense: Nimzowitsch Variation: Bc4 ECO B29 120K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: b6 ECO B40 118K games Gambits Sicilian Defense: Wing Gambit: e6 ECO B20 118K games Openings & Plans Sicilian Defense: Closed, Chameleon Variation ECO B23 117K games Openings & Plans Sicilian Defense: Myers Attack, with a4 ECO B20 113K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with e6: Nf6 ECO B40 109K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: g6 ECO B20 109K games Openings & Plans Sicilian Defense: Open: b6 ECO B32 107K games Gambits Sicilian Defense: Wing Gambit, Deferred Variation ECO B50 106K games Openings & Plans Sicilian Defense: Modern Variations: d3 ECO B50 102K games Openings & Plans Sicilian Defense: McDonnell Attack: e5 ECO B21 98K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation: d4 ECO B31 96K games Openings & Plans Sicilian Defense: Moscow Variation: Bd7 ECO B51 95K games Openings & Plans Sicilian Defense: Open: d5 ECO B32 90K games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: d5 ECO B32 90K games Gambits Sicilian Defense: Wing Gambit Deferred ECO B40 87K games Gambits Sicilian Defense: Morphy Gambit: e5 ECO B21 84K games Gambits Sicilian Defense: McDonnell Attack, Tal Gambit ECO B21 81K games Openings & Plans Sicilian Defense: Myers Attack, with h4 ECO B20 81K games Openings & Plans Sicilian Defense: Open: g6 ECO B32 80K games Gambits Sicilian Defense: Polish Gambit ECO B27 80K games Openings & Plans Sicilian Defense: Delayed Alapin Variation, with d6: g6 ECO B50 80K games Gambits Sicilian Defense: Smith-Morra Gambit: g6 ECO B21 75K games Openings & Plans Sicilian Defense: O'Kelly Variation, Maróczy Bind ECO B28 75K games Openings & Plans Sicilian Defense: O'Kelly Variation, Maróczy Bind ECO B28 75K games Gambits Sicilian Defense: Wing Gambit: b6 ECO B20 74K games Openings & Plans Sicilian Defense: O'Kelly Variation, Quiet System ECO B28 74K games Gambits Sicilian Defense: Smith-Morra Gambit Accepted: Nf3 ECO B21 71K games Openings & Plans Sicilian Defense: Closed, Anti-Sveshnikov Variation: Bc4 ECO B30 71K games Gambits Sicilian Defense: Halasz Gambit ECO B21 67K games Openings & Plans Sicilian Defense: Hyperaccelerated Dragon: c3 ECO B27 66K games Openings & Plans Sicilian Defense: Closed: g6 ECO B23 65K games Openings & Plans Sicilian Defense: Closed, Traditional: g3 ECO B23 65K games Gambits Sicilian Defense: Morphy Gambit: Nf6 ECO B21 64K games Openings & Plans Sicilian: Four Knights: Be2 ECO B45 62K games Openings & Plans Sicilian Defense: Nimzowitsch Variation: d4 ECO B29 62K games Openings & Plans Sicilian Defense: Kopec System ECO B50 61K games Openings & Plans Sicilian Defense: Closed: d6 ECO B23 60K games Openings & Plans Sicilian Defense: Lasker-Dunne Attack: g6 ECO B20 60K games Openings & Plans Sicilian Defense: Mongoose Variation ECO B27 55K games Openings & Plans Sicilian Defense: O'Kelly Variation, Aronin System ECO B28 54K games Openings & Plans Sicilian Defense: Grob Variation ECO B20 53K games Openings & Plans Sicilian Defense: Closed, Korchnoi Defense ECO B23 52K games Openings & Plans Sicilian Defense: O'Kelly Variation: c4 ECO B28 51K games Gambits Sicilian Defense: Wing Gambit: d6 ECO B20 51K games Openings & Plans Sicilian Defense: Franco-Sicilian Variation: Be3 ECO B32 50K games Openings & Plans Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line ECO B28 46K games Openings & Plans Sicilian Defense: Kronberger Variation ECO B20 43K games Openings & Plans Sicilian Defense: Brick Variation ECO B20 42K games Openings & Plans Sicilian Defense: French Variation, Open: Qxd4 ECO B40 42K games Openings & Plans Sicilian Defense: Amazon Attack ECO B20 41K games Openings & Plans Sicilian Defense: McDonnell Attack, Toilet Variation ECO B21 41K games Gambits Sicilian Defense: Wing Gambit, Abrahams Variation ECO B20 41K games Openings & Plans Sicilian Defense: Moscow Variation, Main Line: Nc3 ECO B52 40K games Openings & Plans Sicilian: Four Knights: Bc4 ECO B45 40K games Openings & Plans Sicilian Defense: g3 ECO B20 40K games Openings & Plans Sicilian Defense: Lasker-Dunne Attack: d5 ECO B20 38K games Gambits Sicilian Defense: Morphy Gambit: g6 ECO B21 34K games Openings & Plans Sicilian Defense: O'Kelly Variation, Réti System ECO B28 34K games Openings & Plans Sicilian Defense: O'Kelly Variation, Réti System ECO B28 34K games Gambits Sicilian Defense: Alapin Variation, Anti-Alapin Gambit ECO B22 31K games Gambits Sicilian Defense: Brussels Gambit ECO B27 30K games Openings & Plans Sicilian Defense: Mengarini Variation: Nc6 ECO B20 29K games Openings & Plans Sicilian Defense: French Variation, Open: Bc4 ECO B40 29K games Openings & Plans Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line ECO B28 28K games Openings & Plans Sicilian Defense: King David's Opening ECO B20 27K games Openings & Plans Sicilian Defense: Mengarini Variation: g6 ECO B20 27K games Gambits Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation ECO B21 27K games Openings & Plans Sicilian Defense: Moscow Variation, Main Line: Bc4 ECO B52 26K games Openings & Plans Sicilian Defense: O'Kelly Variation: a4 ECO B28 26K games Openings & Plans Sicilian Defense: O'Kelly Variation, Kieseritzky System ECO B28 25K games Openings & Plans Sicilian Defense: Czerniak Attack: d5 ECO B20 24K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: d5 ECO B27 23K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense ECO B30 22K games Openings & Plans Sicilian Defense: Mengarini Variation: d5 ECO B20 22K games Openings & Plans Sicilian: Four Knights: Ndb5 ECO B45 18K games Openings & Plans Sicilian Defense: Nimzowitsch Variation: e5 ECO B29 15K games Openings & Plans Sicilian Defense: Grand Prix Attack: e5 ECO B23 14K games Openings & Plans Sicilian: Grand Prix Attack: e5 ECO B23 14K games Openings & Plans Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line ECO B28 12K games Gambits Sicilian Defense: Euwe Attack, Prins Gambit ECO B20 12K games Gambits Sicilian Defense: Wing Gambit: Nc6 ECO B20 11K games Openings & Plans Sicilian Defense: Moscow Variation, Main Line: a4 ECO B52 10K games Gambits Sicilian Defense: O'Kelly Variation, Wing Gambit ECO B28 9K games Openings & Plans Sicilian Defense: Czerniak Attack, Queen Fianchetto Variation ECO B20 8K games Openings & Plans Sicilian Defense: Czerniak Attack: e5 ECO B20 8K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: Nf6 ECO B20 8K games Openings & Plans Sicilian Defense: Czerniak Attack: Nf6 ECO B20 8K games Openings & Plans Sicilian Defense: Staunton-Cochrane Variation: Nc6 ECO B20 8K games Openings & Plans Sicilian Defense: Closed: a6 ECO B23 7K games Openings & Plans Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation: c3 ECO B31 6K games Openings & Plans Sicilian Defense: Grand Prix Attack: Nf6 ECO B23 5K games Openings & Plans Sicilian: Grand Prix Attack: Nf6 ECO B23 5K games Openings & Plans Sicilian Defense: Closed, Grob Attack ECO B23 5K games Openings & Plans Sicilian: Four Knights: Nxc6 ECO B45 4K games Openings & Plans Sicilian Defense: Hyperaccelerated Pterodactyl: Be3 ECO B27 4K games Gambits Sicilian Defense: Wing Gambit: e5 ECO B20 2K games Openings & Plans Sicilian Defense: Grand Prix Attack: g6 ECO B23 2K games Openings & Plans Sicilian Defense: Czerniak Attack: d6 ECO B20 2K games Gambits Sicilian Defense: Wing Gambit, Santasiere Variation ECO B20 2K games Openings & Plans Sicilian Defense: Moscow Variation, Main Line: Qe2 ECO B52 2K games Openings & Plans Sicilian Defense: Closed: e5 ECO B23 1K games Openings & Plans Sicilian Defense: Grand Prix Attack: a6 ECO B23 1K games Openings & Plans Sicilian: Grand Prix Attack: a6 ECO B23 1K games Openings & Plans Sicilian Defense: Moscow Variation: Nd7 ECO B51 974 games Gambits Sicilian Defense: Kotov Gambit ECO B50 519 games Gambits Sicilian Defense: Double-Dutch Gambit ECO B27 301 games Openings & Plans Sicilian Defense: Frederico Variation ECO B27 183 games Openings & Plans Sicilian Defense: Acton Extension ECO B27 79 games